A Half Baked Idea • Project

The Count

A Half Baked Idea side project for practising blackjack card counting (Hi-Lo system).
Where half-assery meets creativity… and a little bit of math.
Running Count
0
True Count
0
Estimated Edge
House edge: +0.5%
How to use (Hi-Lo):
Tap +1 for each 2–6, 0 for each 7–9, and −1 for each 10, J, Q, K, A. Adjust Decks remaining based on the discard tray to see the estimated true count and edge.

The Estimated Edge uses a simple approximation: base house edge ≈ 0.5% at true count 0, shifting by about 0.5% per true count. Actual edges depend on exact rules. This is a practice tool only; using devices to assist play in-casino can violate house rules.

On desktop, you can also use the keyboard: ↑ for +1, ↓ for -1.

Basic Strategy (Hard Totals)

Approximate basic strategy for a multi-deck game (H17, DAS, no surrender). Rows are your hard total; columns are dealer upcard.
H = Hit S = Stand D = Double if allowed, otherwise Hit
2 3 4 5 6 7 8 9 10 A
17+ S S S S S S S S S S
16 S S S S S H H H H H
15 S S S S S H H H H H
14 S S S S S H H H H H
13 S S S S S H H H H H
12 H H S S S H H H H H
11 D D D D D D D D D H
10 D D D D D D D H H H
9 H D D D D H H H H H
8 H H H H H H H H H H
Cells highlighted in green are count-based deviations from basic strategy based on the current true count (approximate Hi-Lo indices for common multi-deck rules). Insurance is generally taken only when TC ≥ +3.
Part of the Half Baked Idea family.